The frequency of the antenna is 156-163Mhz, it can work for most of marine radio transceiver.HYSHIKRA always use high quality material for the antenna.It can effectively improve the communication distance of transceiver Specification Freq:156-163Mhz/Impedance:50Ohm/VSWR :less than 1.5/Gain:2dBi/Max power:50Watt Antenna Length:6.7inch Cable length:5meter(16.4ft) The antenna come with antenna mount bracket, it can install on the boat easily What you get: 1pcs HYSHIKRA Rubber Marine Antenna, 1pcs Antenna Mount, 1pcs 5meter RG58 antenna cable HYSHIKRA VHF 156-162MHz 50 W Marine Stubby Antenna with Antenna Mounting Base